Microstructural Observations on High Strength Polycrystalline Iron Whiskers.

Abstract

Polycrystalline iron whiskers produced by chemical vapor decomposition in the presence of a magnetic field have been investigated in regard to their microstructure and composition by transmission electron microscopy, field ion microscopy, and by X-ray and electron diffraction techniques. It was found that the whiskers consisted of a unique and complex microdispersion of iron oxides, iron carbide, and atomic carbon which bond the very small alpha-iron crystallites into a non-porous microstructure of high integrity. The mixing of strong covalent bonding with metallic bonding is proposed to explain the exceptionally high tensile strength of the whiskers. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1978
Accession Number
ADA058027

Entities

People

  • H. G. F. Wilsdorf
  • Lawrence E. Murr
  • Osman T. Inal

Organizations

  • University of Virginia

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystals
  • Electron Diffraction
  • Electron Microscopes
  • Electron Microscopy
  • Engineering
  • Grain Size
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Materials Science
  • Microscopes
  • Microscopy
  • Military Research
  • Physics Laboratories
  • Polycrystals
  • Transmission Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene